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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Arrange the following carboxylic acids with increasing order of their acidic strength and justify your answer. 1) 2) 3)

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प्रश्न

Arrange the following carboxylic acids with increasing order of their acidic strength and justify your answer.

1) 

2)

3)

टीपा लिहा
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उत्तर

  1. Increasing order of their acidic strength: 2 > 3 > 1.
  2. Oxygen atom is electronegative and exerts electron withdrawing inductive effect (–I effect).
  3. Thus, compound (2) and (3) are more acidic as compared to (1).
  4. However, the inductive effect decreases as the oxygen in the ring moves away from the carboxyl group. Therefore, compound (3) is less acidic than compound (2).
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पाठ 12: Aldehydes, Ketones and Carboxylic acids - Exercises [पृष्ठ २८१]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 12 Aldehydes, Ketones and Carboxylic acids
Exercises | Q 3.7 | पृष्ठ २८१

संबंधित प्रश्‍न

Answer in brief.

Formic acid is stronger than acetic acid. Explain.


Correct order of acid strength for

  1. acetic acid
  2. fluoroacetic acid
  3. 4-Nitrobenzoic acid 
  4. 4-Methyl benzoic acid is ______.

Write the structure of the product formed when carboxylic acid is heated with a dehydrating agent like P2O5


What is the action of following on proponal?

Hydroxyl amine


What is the action of following on proponal?

Hydrazine


Write the preparation reactions for acid amide from the following.

Acid chloride


Write chemical reactions to convert –COOH group of acetic acid into the following.

CH3COCl


Write reaction for preparation of acetophenone from benzoyl chloride.


Explain the acidic nature of carboxylic acids.


Complete the following sequence of reactions and write structures for A, B, C.

\[\ce{Dry ice ->[i. Dry ether][ii. Hydrolysis] A ->[PCl5] B ->[H2(gas)][Pd - BaSO4] C}\]


Which of the following compounds reacts with ammonia to form urotropine?


In the reaction, \[\ce{C6H5COCH3 ->[{[H]}][Zn-Hg/conc. HCl] X}\], X is ______.


The product of the reaction between dialkyl cadmium and acyl chloride is a/an ____________.


In the following reaction:

The product X is:


A flavouring agent found in oil of wintergreen is ______.


Products in the following reaction are:

\[\ce{CH3COOH + PCl3 ->[\Delta]}\]


Which of the following carboxylic acids will have the highest acidity?


Which of the following aromatic acids has less acidic strength than benzoic acid?


Which of the following functional groups is reduced by diborane?


Which of the following carboxylic acids ha highest acidic strength?


Excess of ammonia with sodium hypochloride solution in the presence of glue or gelatine gives ______.


Which of the following can reduce?

\[\ce{RCOOH -> RCH2OH}\]


How sodium bicarbonate test is used to distinguish between carboxylic acid and phenol?


Identify 'A', 'B' and 'C' in following chain reaction and rewrite the chemical reactions:
\[\ce{CH3CH2OH ->[red 'P'][Br2] A ->[KCN][alc] B ->[LiAlH4][Ether] C}\]

Which among the following is the strongest acid?


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